After prohibition, nearly all states introduced a legal drinking age (MLDA) of 21. However, between 1970 and 1975, 29 states lowered the MLDA to 18, 19 or 20, mostly in response to the change in voting age. Studies conducted at the time showed that motor vehicle accidents among young people increased as states lowered their MLDA. In addition, the “blood boundaries” between states with different MLDAs came to public attention after high-profile accidents in which underage teens drove to a neighboring state with a lower MLDA, drank legally, and crashed on their way home. Stakeholders called on states to increase their MLDA to 21. Some did so in the late 1970s and early 1980s, but others did not. To promote a national drinking age, Congress enacted the National MLDA. A 1988 review by the U.S. General Accounting Office found that raising the drinking age reduced alcohol consumption among adolescents, driving after drinking among adolescents, and alcohol-related motor vehicle accidents among adolescents. Many states require alcohol to be provided directly by the family member, while others require the family member to be present during consumption. Other states stipulate that the family member must provide the alcohol and be present during consumption.

People under the age of 21 who work in the restaurant or food and beverage industry may be able to purchase alcohol for their work. However, in most cases, they are not allowed to drink it. From 1976 to 1983, several states voluntarily raised their purchasing age to 19 (or, less frequently, 20 or 21), in part to combat drunk driving deaths. [ref. needed] In 1984, Congress passed the National Minimum Drinking Age Act, which required states to raise their purchasing and public ownership age to 21 in October 1986 or lose 10 percent of their federal funding for roads. By mid-1988, all 50 states and the District of Columbia had raised the age of purchase to 21 (but not Puerto Rico, Guam or the Virgin Islands, see additional notes below). South Dakota and Wyoming were the last two states to serve the 21-year term. The current drinking age of 21 remains a point of contention among many Americans because it is above the age of majority (18 in most states) and above the drinking age in most other countries. The National Minimum Drinking Age Act is also considered a circumvention of the Tenth Amendment by Congress. Although the debates were not widely publicized, some states proposed legislation to lower their drinking age,[5] while Guam raised the drinking age to 21 in July 2010. [6] There are also laws to protect underage drinkers from prosecution if they report another minor or seek medical help. Currently, seventeen states provide exceptions related to underage drinking when seeking medical assistance for another minor.

7. When reporting a medical necessity due to the consumption of alcohol by a minor for another minor: In some states, a minor is not punished for drinking alcohol if it is established that he or she drank alcohol by reporting a medical emergency for another underage drinker. Each state sets its own specific requirements for what is considered legal. Since then, alcohol consumption by high school students has decreased significantly, from 66% to 42% (see chart). Over the same period, binge drinking among high school graduates, that is, five or more drinks occasionally, decreased from 37% to 24%. To be considered an alcoholic beverage, the federal government has determined that a “beverage” contains 0.6 ounces of pure alcohol. For example, you can be cash in 30 states if you are 18, in four states with nineteen, in one state with twenty, and 15 states with 21. However, you may need a license to pour drinks depending on the condition. The minimum age for waiters bringing drinks to the table may differ from those behind the bar. Plus, in North Carolina, you can pour eighteen beers and wine, but no alcohol until you`re 21. As you can see, this quickly becomes confusing when it comes to legal age and alcohol.

These exemptions have led to a complex set of laws in which local, state, and federal regulations determine who can distribute, purchase, possess, and consume alcohol in a particular state. * For established religious purposes;* If a person under twenty-one years of age is accompanied by a parent, spouse or guardian twenty-one years of age or older;* For medical purposes, if purchased as an over-the-counter drug or prescribed or administered by a physician, pharmacist, dentist, nurse, a hospital or an authorized medical facility;* In a private dwelling, which includes a residential dwelling and up to twenty contiguous hectares on which the dwelling belonging to the same person who owns it is situated;* the sale, handling, transport or service of supplying alcoholic beverages on the basis of the lawful ownership of an establishment or the lawful employment of a person under twenty-one years of age by a duly licensed producer, wholesaler or retailer of alcoholic beverages.